For the endurance sports athlete. You want to improve your performance also between training routines by planning, monitoring and analyzingyour training. Do all this and much more with RS400, the complete system for runners. RS400 has one of the largest displays in the industry and a fully user configurable exercise view with countless combinations. The impressive design and comfortable wrist top mounting make it apleasure to wear also in everyday life. TRAINING PLANNING WITH POLAR PROTRAINER 5: The new Polar ProTrainer 5 is the most advanced and dynamic training, planning and analyzing software on the market. Easily prepare a detailed training program and transfer your daily training plan to your Polar Running Computer via infrared.